/* 版面：細頂列＋分頁；譜面是一張紙；指法圖照盒裝指法表的樣子（橘色笛身、紅按白放） */
:root {
  --bg: #F3EFE6;
  --surface: #FCFAF5;
  --surface-2: #ECE6DA;
  --ink: #23201C;
  --ink-2: #57524A;
  --ink-3: #87817A;
  --line: #D8CFBF;
  --glaze: #2F7461;
  --glaze-2: #235A4B;
  --glaze-soft: #D6E8DF;
  --on-glaze: #FFFFFF;
  --kiln: #B5541F;
  --kiln-soft: #F6E3D3;
  --cur: #2463EB;
  --cur-soft: #DDE8FF;
  --good: #2C7A4C;
  --good-soft: #DAF0E1;
  --warn: #9C640B;
  --warn-soft: #F7E8C6;
  --bad: #B0362D;
  --bad-soft: #F8D9D4;
  --miss: #8A867D;
  --shadow: 0 1px 2px rgba(35, 32, 28, .06), 0 6px 20px rgba(35, 32, 28, .06);
  --font-display: "LXGW WenKai TC", "Noto Serif TC", "Songti TC", serif;
  --font-body: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  --font-num: "Barlow Semi Condensed", "Noto Sans TC", "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Noto Sans TC", monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #151412; --surface: #1D1B19; --surface-2: #282521; --ink: #ECE8E0; --ink-2: #ADA79D; --ink-3: #807A71; --line: #38332D;
    --glaze: #79C1A6; --glaze-2: #9BD6BF; --glaze-soft: #1E3530; --on-glaze: #0D1B16;
    --kiln: #E68B52; --kiln-soft: #3B2619; --cur: #7FA8FF; --cur-soft: #1C2A47;
    --good: #6BC58F; --good-soft: #1B3226; --warn: #E1B35B; --warn-soft: #392D16; --bad: #EF7C71; --bad-soft: #3B1F1C; --miss: #8A857C;
    --shadow: 0 1px 2px rgba(0, 0, 0, .35), 0 8px 26px rgba(0, 0, 0, .28);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #151412; --surface: #1D1B19; --surface-2: #282521; --ink: #ECE8E0; --ink-2: #ADA79D; --ink-3: #807A71; --line: #38332D;
  --glaze: #79C1A6; --glaze-2: #9BD6BF; --glaze-soft: #1E3530; --on-glaze: #0D1B16;
  --kiln: #E68B52; --kiln-soft: #3B2619; --cur: #7FA8FF; --cur-soft: #1C2A47;
  --good: #6BC58F; --good-soft: #1B3226; --warn: #E1B35B; --warn-soft: #392D16; --bad: #EF7C71; --bad-soft: #3B1F1C; --miss: #8A857C;
  --shadow: 0 1px 2px rgba(0, 0, 0, .35), 0 8px 26px rgba(0, 0, 0, .28);
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { background: var(--bg); color: var(--ink); font-family: var(--font-body); font-size: 15px; line-height: 1.6; margin: 0; }
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 10; background: var(--bg); }
h1, h2, h3 { margin: 0; text-wrap: balance; }
h1 { font-family: var(--font-display); font-size: 28px; font-weight: 700; line-height: 1.25; }
h2 { font-family: var(--font-display); font-size: 21px; font-weight: 700; line-height: 1.3; }
h3 { font-size: 15px; font-weight: 700; line-height: 1.4; }
p { margin: 0; }
.sub { color: var(--ink-2); font-size: 13.5px; }
.hint { color: var(--ink-3); font-size: 12.5px; }
a { color: var(--glaze-2); }
small { font-size: 12px; color: var(--ink-3); font-weight: 400; }
code { font-family: var(--font-mono); font-size: .92em; }
.num { font-family: var(--font-num); font-variant-numeric: tabular-nums; }
.wrap { max-width: 1220px; margin: 0 auto; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
main.wrap { padding-block: 20px 140px; }
.row { display: flex; flex-wrap: wrap; gap: 10px 14px; align-items: center; }
.row .grow { flex: 1 1 220px; min-width: 0; }
.w100 { width: 100%; justify-content: center; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; box-shadow: var(--shadow); min-width: 0; }
.stack { display: grid; gap: 16px; }

/* 頂列 */
.top { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; background: var(--bg); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; gap: 8px 14px; padding-block: 9px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 9px; text-decoration: none; color: var(--ink); min-width: 0; margin-right: auto; order: 1; }
.brand svg, .auth-brand svg { width: 30px; height: 31px; flex: none; }
.b-body { fill: #e4874f; stroke: #c76c37; stroke-width: 1.4; }
.b-c { fill: #d3242c; }
.b-o { fill: #fff; }
.brand-t { font-family: var(--font-display); font-size: 21px; font-weight: 700; white-space: nowrap; }
.brand small { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nav { display: flex; gap: 1px; overflow-x: auto; scrollbar-width: none; max-width: 100%; order: 2; }
.nav::-webkit-scrollbar { display: none; }
.nav a { padding: 7px 10px; border-radius: 9px; color: var(--ink-2); text-decoration: none; white-space: nowrap; font-weight: 500; font-size: 14px; }
.nav a:hover { color: var(--ink); background: var(--surface-2); }
.nav a.on { color: var(--glaze-2); background: var(--glaze-soft); font-weight: 700; }
.who { order: 3; display: inline-flex; align-items: center; gap: 7px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); border-radius: 999px; padding: 3px 11px 3px 3px; font: inherit; font-size: 13px; cursor: pointer; max-width: 180px; }
.who span:last-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.avatar { width: 26px; height: 26px; border-radius: 50%; background: var(--kiln); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 13px; flex: none; }

/* 控制項 */
.btn { font: inherit; font-size: 14px; display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 8px 14px; border-radius: 9px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); cursor: pointer; line-height: 1.25; text-decoration: none; white-space: nowrap; }
.btn:hover { border-color: var(--glaze); }
.btn.primary { background: var(--glaze); border-color: var(--glaze); color: var(--on-glaze); font-weight: 600; }
.btn.primary:hover { background: var(--glaze-2); border-color: var(--glaze-2); }
.btn.warn { color: var(--bad); }
.btn.ghost { background: transparent; }
.btn.sm { padding: 5px 10px; font-size: 13px; border-radius: 8px; }
.btn:disabled { opacity: .45; cursor: default; }
.btn svg { width: 16px; height: 16px; flex: none; }
:focus-visible { outline: 2px solid var(--kiln); outline-offset: 2px; }
.seg { display: inline-flex; flex-wrap: wrap; background: var(--surface-2); border-radius: 10px; padding: 3px; gap: 2px; max-width: 100%; }
.seg button { border: 0; background: transparent; padding: 6px 12px; border-radius: 8px; font: inherit; font-size: 13.5px; color: var(--ink-2); cursor: pointer; white-space: nowrap; }
.seg button.on { background: var(--surface); color: var(--ink); box-shadow: 0 1px 2px rgba(0, 0, 0, .1); font-weight: 600; }
.seg.big button { padding: 8px 16px; font-size: 14.5px; }
input[type="text"], input[type="search"], input[type="password"], input:not([type]), input[type="number"], select, textarea {
  font: inherit; font-size: 14px; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 7px 10px; max-width: 100%;
}
input[type="number"] { width: 84px; }
textarea { width: 100%; font-family: var(--font-mono); font-size: 14px; line-height: 1.7; min-height: 150px; resize: vertical; }
input[type="range"] { accent-color: var(--glaze); width: 130px; vertical-align: middle; }
input[type="checkbox"] { accent-color: var(--glaze); width: 16px; height: 16px; vertical-align: -3px; }
label { color: var(--ink-2); font-size: 13.5px; }
label input, label select { margin-left: 4px; }
output { font-family: var(--font-num); font-weight: 600; color: var(--ink); min-width: 3ch; display: inline-block; text-align: center; font-variant-numeric: tabular-nums; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font-size: 12.5px; padding: 3px 9px; border-radius: 999px; background: var(--surface-2); color: var(--ink-2); white-space: nowrap; }
.chip.accent { background: var(--glaze-soft); color: var(--glaze-2); font-weight: 600; }
.chip.warn { background: var(--warn-soft); color: var(--warn); }
.chip.bad { background: var(--bad-soft); color: var(--bad); }
.notice { border-radius: 10px; padding: 10px 14px; background: var(--kiln-soft); color: var(--ink); font-size: 13.5px; border: 1px solid color-mix(in srgb, var(--kiln) 35%, transparent); }
.notice b { color: var(--kiln); }
.empty { color: var(--ink-3); padding: 24px 0; }

/* 歡迎 */
.welcome { display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: flex-end; justify-content: space-between; margin-bottom: 18px; border-color: color-mix(in srgb, var(--kiln) 45%, var(--line)); }
.welcome .wl-txt { display: grid; gap: 6px; max-width: 76ch; min-width: 0; }
.welcome ol { margin: 0; padding-left: 1.3em; display: grid; gap: 4px; font-size: 14px; }

/* 曲譜頁 */
.songs-grid { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 20px; align-items: start; }
.lib { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 70px); display: grid; gap: 10px; max-height: calc(100vh - 96px); grid-template-rows: auto auto minmax(0, 1fr) auto; }
.lib-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.lib-list { overflow-y: auto; display: grid; gap: 4px; align-content: start; padding-right: 2px; min-height: 0; }
.song { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2px 8px; padding: 9px 11px; border-radius: 10px; cursor: pointer; border: 1px solid transparent; background: transparent; text-align: left; font: inherit; color: inherit; width: 100%; }
.song:hover { background: var(--surface-2); }
.song.on { background: var(--glaze-soft); border-color: color-mix(in srgb, var(--glaze) 35%, transparent); }
.song .t { font-weight: 600; font-size: 14.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.song .s { font-size: 12px; color: var(--ink-3); grid-column: 1 / -1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.song .stars { font-size: 11px; color: var(--kiln); letter-spacing: 1px; white-space: nowrap; }
.song .best { font-family: var(--font-num); font-size: 12px; color: var(--glaze-2); }
.sheet-module { display: grid; gap: 20px; min-width: 0; }
.sheet-slot { min-width: 0; }
.sheet { display: grid; gap: 14px; padding: 20px 22px; }
.sheet-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 16px; align-items: flex-end; }
.sheet-title { min-width: 0; display: grid; gap: 4px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; padding: 12px 0; border-block: 1px solid var(--line); }
.tgroup { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.practice-bar { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.pbtn { display: grid; grid-template-columns: auto minmax(0, 1fr); column-gap: 10px; align-items: center; text-align: left; padding: 11px 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface-2); color: var(--ink); cursor: pointer; font: inherit; }
.pbtn:hover { border-color: var(--glaze); background: var(--glaze-soft); }
.pbtn:disabled { opacity: .5; cursor: default; }
.pbtn svg { grid-row: span 2; width: 26px; height: 26px; color: var(--glaze); }
.pbtn b { font-size: 15px; }
.pbtn span { font-size: 12px; color: var(--ink-2); }
.editor { display: grid; gap: 10px; background: var(--surface-2); border-radius: 12px; padding: 14px; }
.editor .cols { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); gap: 12px; }
.editor textarea { min-height: 180px; }
.editor .help { font-size: 12.5px; color: var(--ink-2); line-height: 1.8; }
.editor .help code { background: var(--surface); padding: 1px 5px; border-radius: 4px; color: var(--ink); }
.warns { display: grid; gap: 4px; }
.warns p { font-size: 12.5px; color: var(--warn); }
.legend-strip { display: flex; flex-wrap: wrap; gap: 6px 18px; align-items: center; font-size: 12.5px; color: var(--ink-2); }
.legend-strip .lg-m { display: inline-flex; align-items: center; gap: 5px; }
.legend-strip .lg-m i { width: 14px; height: 10px; border-radius: 3px; display: inline-block; }
.pager { display: flex; align-items: center; justify-content: center; gap: 12px; font-family: var(--font-num); font-size: 14px; color: var(--ink-2); }

/* 簡譜 */
.tab-host { overflow-x: auto; padding: 4px 2px 8px; position: relative; }
.tab-host.paged { overflow: hidden; border-radius: 10px; background: var(--surface); box-shadow: inset 0 0 0 1px var(--line); padding: 6px 6px 0; }
.tab { position: relative; display: flex; flex-wrap: wrap; row-gap: 16px; align-items: flex-start; will-change: transform; }
.tab:not(.with-fg) { --fgh: 0px; }
.m { display: flex; align-items: flex-start; position: relative; padding: 14px 0 2px; border-radius: 10px; transition: background-color .25s; }
.m.cur { background: var(--cur-soft); }
.m.m-good { background: color-mix(in srgb, var(--good-soft) 75%, transparent); }
.m.m-warn { background: color-mix(in srgb, var(--warn-soft) 80%, transparent); }
.m.m-bad { background: color-mix(in srgb, var(--bad-soft) 85%, transparent); }
.m.cur.m-good, .m.cur.m-warn, .m.cur.m-bad { background: var(--cur-soft); }
.mn { position: absolute; left: 3px; top: -1px; font-family: var(--font-num); font-size: 11px; color: var(--ink-3); display: none; }
.m.ls .mn { display: block; }
.g { display: flex; margin: 0 2px; }
.c { position: relative; display: flex; flex-direction: column; align-items: center; min-width: var(--cw, 31px); padding: 0 1px; border-radius: 7px; cursor: pointer; transition: background-color .12s; }
.c.r { cursor: default; }
.fgw { height: var(--fgh); display: flex; align-items: flex-end; justify-content: center; position: relative; }
.fgw svg.fg { display: block; }
.chb { position: absolute; left: -3px; top: -2px; font-style: normal; font-size: 12px; line-height: 1; color: var(--kiln); font-weight: 700; background: var(--surface); border-radius: 50%; }
.chb.ch0 { color: var(--ink-3); }
.fold { position: absolute; right: -5px; top: 0; font-style: normal; font-size: 11px; font-weight: 700; color: var(--kiln); }
.oh, .ol { height: 8px; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; gap: 1.5px; }
.ol { justify-content: flex-start; }
.oh b, .ol b { display: block; width: 4px; height: 4px; border-radius: 50%; background: currentColor; }
.nm { font-family: var(--font-num); font-weight: 600; font-size: 25px; line-height: 28px; height: 28px; white-space: nowrap; font-variant-numeric: tabular-nums; }
.nm sup { font-size: .5em; vertical-align: top; position: relative; top: .2em; margin-right: 1px; font-weight: 700; }
.aug { font-style: normal; font-weight: 700; margin-left: 1px; }
.ul { height: 7px; width: 100%; position: relative; }
.c.u1 .ul::before, .c.u2 .ul::before, .c.u2 .ul::after { content: ""; position: absolute; left: 0; right: 0; height: 1.7px; background: currentColor; }
.c.u1 .ul::before, .c.u2 .ul::before { top: 1px; }
.c.u2 .ul::after { top: 4.6px; }
.g > .c:first-child .ul::before, .g > .c:first-child .ul::after { left: 4px; }
.g > .c:last-child .ul::before, .g > .c:last-child .ul::after { right: 4px; }
.lb { font-size: 10.5px; line-height: 14px; height: 14px; color: var(--ink-3); white-space: nowrap; }
.ly { font-size: 13px; line-height: 18px; height: 18px; color: var(--ink-2); white-space: nowrap; }
.c.tie::before { content: ""; position: absolute; top: calc(var(--fgh) + 1px); right: 50%; width: 100%; height: 9px; border-top: 1.6px solid currentColor; border-radius: 50% 50% 0 0 / 100% 100% 0 0; pointer-events: none; }
.bar { align-self: flex-start; margin-top: calc(var(--fgh) + 4px); width: 1.6px; height: 42px; background: var(--ink); margin-left: 6px; margin-right: 6px; flex: none; }
.bar.end { width: 6px; background: none; border-left: 1.6px solid var(--ink); border-right: 3.4px solid var(--ink); }
.c.missing .nm { color: var(--bad); }
.c.now { background: color-mix(in srgb, var(--cur) 18%, transparent); box-shadow: inset 0 0 0 2px var(--cur); }
.c.now .nm { color: var(--cur); }
.c.nx { box-shadow: inset 0 0 0 1.5px color-mix(in srgb, var(--cur) 55%, transparent); }
.c.lv-ok .nm, .c.r-ok .nm { color: var(--good); }
.c.lv-warn .nm, .c.r-flat .nm, .c.r-sharp .nm { color: var(--warn); }
.c.lv-bad, .c.r-wrong { background: var(--bad-soft); }
.c.lv-bad .nm, .c.r-wrong .nm { color: var(--bad); }
.c.lv-miss .nm, .c.r-miss .nm { color: var(--miss); text-decoration: line-through; text-decoration-thickness: 1.5px; }
.c.r-flat, .c.r-sharp { background: color-mix(in srgb, var(--warn-soft) 60%, transparent); }
.c.r-miss { background: var(--surface-2); }
.c.lv-flash { animation: lvflash .6s ease 2; }
@keyframes lvflash { 0%, 100% { background: transparent; } 40% { background: var(--bad-soft); } }
.c .hd { position: absolute; right: -4px; top: calc(var(--fgh) - 6px); font-style: normal; font-family: var(--font-num); font-weight: 700; font-size: 12px; line-height: 15px; min-width: 15px; padding: 0 3px; border-radius: 8px; text-align: center; background: var(--bad); color: #fff; pointer-events: auto; z-index: 2; }
.c.lv-warn .hd { background: var(--warn); }
.c.lv-miss .hd { background: var(--miss); }
.c.hl { outline: 2px solid var(--kiln); outline-offset: 1px; }
/* 背譜：格子位置不變（翻頁、進度照常），內容藏起來；吹過、按提示、偷看或結束後才翻開 */
.tab.memo:not(.memo-done):not(.peek) .c:not(.shown) .fgw > * { visibility: hidden; }
.tab.memo-2:not(.memo-done):not(.peek) .c.n:not(.cue):not(.shown) :is(.nm, .oh, .ol, .lb) { visibility: hidden; }
.tab.memo-3:not(.memo-done):not(.peek) .c:not(.shown) :is(.nm, .oh, .ol, .lb, .ul) { visibility: hidden; }
.tab.memo-3:not(.memo-done):not(.peek) .c.tie:not(.shown)::before { visibility: hidden; }
.tab.memo-3.memo-noly:not(.memo-done):not(.peek) .c:not(.shown) .ly { visibility: hidden; }
.tab.memo-2:not(.memo-done):not(.peek) .c.n:not(.cue):not(.shown)::after,
.tab.memo-3:not(.memo-done):not(.peek) .c.n:not(.tie):not(.shown)::after {
  content: ""; position: absolute; left: 50%; top: calc(var(--fgh) + 10px); width: 15px; height: 20px; margin-left: -7.5px;
  border-radius: 5px; border: 1.5px dashed color-mix(in srgb, var(--ink-3) 65%, transparent); pointer-events: none;
}
.tab.memo-1:not(.memo-done):not(.peek) .c.n:not(.shown) .fgw::after,
.tab.memo-2:not(.memo-done):not(.peek) .c.n.cue:not(.shown) .fgw::after {
  content: "?"; position: absolute; inset: 0; display: grid; place-items: end center; padding-bottom: 6px;
  font-family: var(--font-num); font-size: 15px; font-weight: 700; color: color-mix(in srgb, var(--ink-3) 70%, transparent);
}
.tab:not(.with-fg) .fgw::after { display: none; }
.tab.memo .c.tie .fgw::after { display: none; }
/* 沒有翻開的音也看得出吹對（綠底）或吹錯（紅底） */
.tab.memo:not(.memo-done) .c.lv-ok:not(.shown), .tab.memo:not(.memo-done) .c.r-ok:not(.shown) { background: var(--good-soft); }
.tab.memo:not(.memo-done) .c.lv-warn:not(.shown) { background: var(--warn-soft); }
.tab.memo.peek { outline: 2px dashed var(--kiln); outline-offset: 4px; border-radius: 8px; }
.memo-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; }
.memo-bar label { display: inline-flex; align-items: center; gap: 5px; font-size: 13.5px; }
.memo-bar[data-on="0"] .memo-more { display: none; }
#memoPeek { touch-action: none; user-select: none; -webkit-user-select: none; }
#memoPeek.on { background: var(--kiln-soft); border-color: var(--kiln); }

/* 結果 */
.results { display: grid; gap: 16px; }
.res-top { display: grid; grid-template-columns: auto minmax(0, 1fr) minmax(0, 260px); gap: 20px; align-items: center; }
.dial { position: relative; width: 128px; height: 128px; }
.dial svg { width: 128px; height: 128px; transform: rotate(-90deg); }
.dial .trk { fill: none; stroke: var(--surface-2); stroke-width: 10; }
.dial .val { fill: none; stroke: var(--glaze); stroke-width: 10; stroke-linecap: round; transition: stroke-dashoffset .8s ease; }
.dial-n { position: absolute; inset: 0; display: grid; place-items: center; align-content: center; }
.dial-n b { font-family: var(--font-num); font-size: 44px; line-height: 1; font-weight: 700; }
.dial-n span { font-family: var(--font-num); font-size: 15px; font-weight: 700; color: var(--kiln); letter-spacing: .08em; }
.res-sum { display: grid; gap: 8px; min-width: 0; }
.bars { display: grid; gap: 7px; }
.sb { display: grid; grid-template-columns: 4.5em minmax(0, 1fr) 2.6em; gap: 10px; align-items: center; font-size: 13px; }
.sb .tr { height: 8px; border-radius: 4px; background: var(--surface-2); overflow: hidden; }
.sb .tr i { display: block; height: 100%; border-radius: 4px; background: var(--glaze); }
.sb .v { font-family: var(--font-num); font-weight: 600; text-align: right; font-variant-numeric: tabular-nums; }
.res-hist { display: grid; gap: 6px; min-width: 0; }
.res-hist canvas { width: 100%; height: 64px; }
.sug { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.sug li { display: grid; grid-template-columns: 6px minmax(0, 1fr); gap: 12px; padding: 11px 14px; border-radius: 10px; background: var(--surface-2); cursor: default; }
.sug li.click { cursor: pointer; }
.sug li.click:hover { background: color-mix(in srgb, var(--glaze-soft) 70%, var(--surface-2)); }
.sug li::before { content: ""; border-radius: 3px; background: var(--glaze); }
.sug li.warn::before { background: var(--bad); }
.sug li.tip::before { background: var(--warn); }
.sug li.good::before { background: var(--good); }
.sug li b { display: block; font-size: 14.5px; }
.sug li span { font-size: 13.5px; color: var(--ink-2); }
.chart-wrap { overflow-x: auto; }
.chart-wrap canvas { width: 100%; height: 260px; display: block; min-width: 520px; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 12px; color: var(--ink-2); }
.legend i { display: inline-block; width: 12px; height: 8px; border-radius: 2px; margin-right: 5px; vertical-align: 0; }

/* 練習中的浮動列 */
.hud { position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; background: var(--surface); border-top: 1px solid var(--line); box-shadow: 0 -8px 26px rgba(0, 0, 0, .1); padding-bottom: env(safe-area-inset-bottom, 0px); }
.hud-in { display: grid; grid-template-columns: auto auto minmax(0, 1fr) auto; gap: 16px; align-items: center; padding-block: 8px; }
.hud-now { display: flex; align-items: center; gap: 10px; padding: 4px 10px 4px 4px; border-radius: 12px; background: var(--cur-soft); }
.hud-fg svg.fg { width: auto; height: 74px; }
.hud-fg svg.fg-pendant { width: 72px; height: auto; }
.hud-fg svg.fg-transverse, .hud-fg svg.fg-double, .hud-fg svg.fg-triple { width: 130px; height: auto; }
.hud-txt { display: grid; }
.hud-txt small { display: block; }
.hud-txt b { font-family: var(--font-num); font-size: 30px; line-height: 1.05; color: var(--cur); }
.hud-txt span { font-size: 13px; color: var(--ink-2); white-space: nowrap; }
.hud-next { display: flex; align-items: flex-end; gap: 8px; }
.hud-next .nx-i { display: grid; justify-items: center; gap: 1px; opacity: .9; }
.hud-next .nx-i:nth-child(2) { opacity: .7; }
.hud-next .nx-i:nth-child(3) { opacity: .5; }
.hud-next .nx-i b { font-family: var(--font-num); font-size: 16px; line-height: 1; }
.hud-next .nx-h { font-size: 11px; color: var(--ink-3); align-self: center; writing-mode: vertical-rl; letter-spacing: 2px; }
.hud-meter { display: grid; gap: 4px; min-width: 0; }
.meter { position: relative; height: 12px; border-radius: 6px; background: linear-gradient(90deg, var(--bad-soft), var(--warn-soft) 30%, var(--good-soft) 42%, var(--good-soft) 58%, var(--warn-soft) 70%, var(--bad-soft)); }
.meter::after { content: ""; position: absolute; left: 50%; top: -2px; bottom: -2px; width: 1.5px; background: var(--ink-3); }
.meter i { position: absolute; top: -3px; width: 6px; height: 18px; margin-left: -3px; border-radius: 3px; background: var(--ink); left: 50%; transition: left .08s linear; opacity: .25; }
.meter i.live { opacity: 1; }
.meter i.off { background: var(--bad); }
.hud-meter span { font-size: 13.5px; color: var(--ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hud-meter span.bad { color: var(--bad); font-weight: 600; }
.hud-meter span.good { color: var(--good); }
.hud-prog { display: flex; align-items: center; gap: 10px; }
.hud-prog span { font-family: var(--font-num); font-size: 14px; color: var(--ink-2); white-space: nowrap; }
.countin { position: fixed; inset: 0; display: grid; place-items: center; pointer-events: none; z-index: 25; }
.countin b { font-family: var(--font-num); font-size: 120px; color: var(--cur); opacity: .85; }

/* 音階練習 */
.ex-card { display: grid; gap: 14px; }
.ex-head { display: flex; flex-wrap: wrap; gap: 12px 20px; justify-content: space-between; align-items: flex-start; }
.ex-head > div:first-child { display: grid; gap: 6px; max-width: 72ch; }
.ex-inst { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--ink-2); }
.ex-inst svg.fg { width: 64px; height: auto; }
.ex-inst svg.fg-transverse, .ex-inst svg.fg-double, .ex-inst svg.fg-triple { width: 110px; }
.ex-types { display: grid; grid-template-columns: repeat(auto-fill, minmax(148px, 1fr)); gap: 8px; }
.ex-type { text-align: left; display: grid; gap: 1px; padding: 9px 12px; border-radius: 11px; border: 1px solid var(--line); background: var(--surface); cursor: pointer; font: inherit; color: inherit; }
.ex-type:hover { border-color: var(--glaze); }
.ex-type.on { border-color: var(--glaze); background: var(--glaze-soft); box-shadow: inset 0 0 0 1px var(--glaze); }
.ex-type b { font-size: 14px; }
.ex-type span { font-size: 12px; color: var(--ink-3); font-family: var(--font-num); }
.ex-opts { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center; }

/* 轉譜頁 */
.conv { display: grid; gap: 16px; }
.conv-head { display: grid; gap: 6px; max-width: 72ch; }
.drop { border: 2px dashed var(--line); border-radius: 14px; padding: 26px 18px; text-align: center; cursor: pointer; display: grid; gap: 4px; background: var(--surface-2); color: var(--ink); }
.drop:hover, .drop.over { border-color: var(--glaze); background: var(--glaze-soft); }
.drop b { font-size: 16px; }
.drop span { font-size: 13px; color: var(--ink-2); }
.src { display: grid; gap: 14px; }
.file-row { display: flex; flex-wrap: wrap; gap: 6px 12px; align-items: baseline; }
.file-row b { overflow-wrap: anywhere; }
.wave { width: 100%; height: 92px; display: block; border-radius: 10px; background: var(--surface-2); cursor: crosshair; touch-action: none; }
.opts { display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; }
.progress { display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; align-items: center; }
.progress .pbar { grid-column: 1 / -1; }
.notice.tip { background: var(--cur-soft); border-color: color-mix(in srgb, var(--cur) 35%, transparent); }
.notice.tip b { color: var(--cur); }
.notice label { display: inline-flex; gap: 6px; align-items: center; margin-top: 6px; font-weight: 500; }
.fix-row { align-items: center; }
.note-pop { position: fixed; z-index: 40; max-width: min(360px, calc(100vw - 24px)); background: var(--surface); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow); padding: 10px 12px; display: grid; gap: 8px; }
.note-pop b { font-family: var(--font-display); font-size: 16px; }
.np-btns { display: flex; flex-wrap: wrap; gap: 6px; }
.tab .c.fixed .nm { text-decoration: underline wavy var(--cur); text-underline-offset: 3px; }
.pbar { height: 8px; border-radius: 4px; background: var(--surface-2); overflow: hidden; }
.pbar i { display: block; height: 100%; width: 0; background: var(--glaze); transition: width .2s; }
.conv-res { display: grid; gap: 14px; }
.mel { width: 100%; height: 140px; display: block; border-radius: 10px; background: var(--surface-2); }
.cands { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 10px; }
.cand { text-align: left; display: grid; gap: 2px; padding: 10px 12px; border-radius: 11px; border: 1px solid var(--line); background: var(--surface); cursor: pointer; font: inherit; color: inherit; }
.cand:hover { border-color: var(--glaze); }
.cand.on { border-color: var(--glaze); background: var(--glaze-soft); box-shadow: inset 0 0 0 1px var(--glaze); }
.cand b { font-size: 14.5px; }
.cand span { font-size: 12.5px; color: var(--ink-2); }
.tracks { display: grid; gap: 6px; }
.trk-row { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 10px; align-items: center; padding: 8px 12px; border-radius: 10px; background: var(--surface-2); cursor: pointer; }
.trk-row.on { background: var(--glaze-soft); }
.trk-row span { font-size: 12.5px; color: var(--ink-2); font-family: var(--font-num); white-space: nowrap; }
.rec-live { width: 100%; height: 110px; display: block; border-radius: 10px; background: var(--surface-2); }
.rec-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.rec-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--bad); display: inline-block; animation: blink 1s infinite; }
@keyframes blink { 50% { opacity: .25; } }
details summary { cursor: pointer; font-weight: 600; font-size: 14px; }
details[open] summary { margin-bottom: 8px; }

/* 指法表 */
.legend-card { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 24px; align-items: center; }
.big-fg svg.fg { width: 210px; height: auto; display: block; }
.big-fg svg.fg-pendant { width: 170px; }
.big-fg svg.fg-transverse, .big-fg svg.fg-double, .big-fg svg.fg-triple { width: 300px; }
.legend-card .txt { display: grid; gap: 10px; max-width: 70ch; min-width: 0; }
.legend-card ul { margin: 0; padding-left: 1.2em; display: grid; gap: 4px; font-size: 14px; }
.legend-line { font-size: 13px; color: var(--ink-2); }
.fgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(var(--fcw, 124px), 1fr)); gap: 10px; }
.fgrid.geo-transverse, .fgrid.geo-double, .fgrid.geo-triple { --fcw: 176px; }
.fcard { position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 10px 8px 9px; text-align: center; cursor: pointer; display: grid; justify-items: center; gap: 2px; font: inherit; color: inherit; }
.fcard:hover { border-color: var(--glaze); }
.fcard.acc { background: var(--surface-2); }
.fcard.playing { border-color: var(--cur); box-shadow: inset 0 0 0 1px var(--cur); }
.fcard.custom { border-style: dashed; border-color: var(--kiln); }
.fcard svg.fg { width: 92px; height: auto; }
.fgrid.geo-transverse .fcard svg.fg, .fgrid.geo-double .fcard svg.fg, .fgrid.geo-triple .fcard svg.fg { width: 150px; }
.fcard .jp { font-family: var(--font-num); font-size: 25px; font-weight: 600; line-height: 1.1; display: flex; flex-direction: column; align-items: center; }
.fcard .jp .oh { height: 7px; }
.fcard .sf { font-size: 13px; color: var(--ink); }
.fcard .hz { font-size: 11px; color: var(--ink-3); font-family: var(--font-num); font-variant-numeric: tabular-nums; }
.fcard .alts { display: flex; gap: 4px; align-items: center; font-size: 11px; color: var(--ink-3); }
.fcard .alts button { border: 1px solid var(--line); background: var(--surface); border-radius: 6px; padding: 0 5px; font: inherit; font-size: 11px; cursor: pointer; color: var(--ink-2); }
.fcard .alts button.on { border-color: var(--cur); color: var(--cur); }
.fcard .chn { position: absolute; top: 6px; left: 8px; font-size: 11px; color: var(--kiln); font-weight: 700; }
.fgrid.editing .fcard { cursor: default; }
.order-card { display: grid; gap: 12px; }
.order-btns { display: grid; grid-template-columns: repeat(auto-fill, minmax(148px, 1fr)); gap: 8px; }
.order-btns button { text-align: left; display: grid; gap: 2px; padding: 10px 12px; border-radius: 11px; border: 1px solid var(--line); background: var(--surface-2); cursor: pointer; font: inherit; color: inherit; }
.order-btns button:hover { border-color: var(--glaze); background: var(--glaze-soft); }
.order-btns b { font-size: 14px; }
.order-btns span { font-size: 12px; color: var(--ink-2); font-family: var(--font-num); }
.quiz { display: grid; gap: 14px; }
.quiz-head { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center; justify-content: space-between; }
.quiz-score { font-family: var(--font-num); font-size: 15px; color: var(--ink-2); }
.quiz-body { display: grid; justify-items: center; gap: 14px; padding: 8px 0 4px; text-align: center; }
.quiz-body .q-fg svg.fg { width: 150px; height: auto; }
.quiz-body .q-fg svg.fg-transverse, .quiz-body .q-fg svg.fg-double, .quiz-body .q-fg svg.fg-triple { width: 300px; }
.quiz-body .q-note { font-family: var(--font-num); font-size: 54px; font-weight: 600; line-height: 1; display: flex; flex-direction: column; align-items: center; }
.quiz-body .q-note .oh b, .quiz-body .q-note .ol b { width: 7px; height: 7px; }
.quiz-body .q-note .oh, .quiz-body .q-note .ol { height: 12px; }
.choices { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; width: min(560px, 100%); }
.choice { padding: 12px 8px; border-radius: 11px; border: 1px solid var(--line); background: var(--surface); font: inherit; font-size: 17px; font-weight: 600; cursor: pointer; color: var(--ink); }
.choice:hover { border-color: var(--glaze); }
.choice.right { background: var(--good-soft); border-color: var(--good); color: var(--good); }
.choice.wrongc { background: var(--bad-soft); border-color: var(--bad); color: var(--bad); }
.q-msg { min-height: 1.6em; font-size: 14.5px; }
/* 背指法練習 */
.fq-set { display: grid; gap: 12px; }
.fq-field { display: grid; gap: 6px; }
.fq-lab { font-size: 13.5px; color: var(--ink-2); }
.fq-types { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 170px), 1fr)); gap: 8px; }
.fq-type { text-align: left; display: grid; gap: 1px; padding: 9px 12px; border-radius: 11px; border: 1px solid var(--line); background: var(--surface); cursor: pointer; font: inherit; color: inherit; }
.fq-type b { font-size: 14px; }
.fq-type span { font-size: 12px; color: var(--ink-2); }
.fq-type:hover { border-color: var(--glaze); }
.fq-type.on { border-color: var(--glaze); background: var(--glaze-soft); box-shadow: inset 0 0 0 1px var(--glaze); }
.fq-type.on b::before { content: "✓ "; color: var(--glaze-2); }
.fq-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 180px), 1fr)); gap: 10px 14px; }
.fq-grid label { display: grid; gap: 4px; font-size: 13.5px; color: var(--ink-2); }
.fq-grid select { width: 100%; margin: 0; }
.fq-notes { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.fq-notes .row { width: 100%; }
.fq-n { display: grid; justify-items: center; min-width: 52px; padding: 5px 8px; border-radius: 9px; border: 1px solid var(--line); background: var(--surface); cursor: pointer; font: inherit; color: inherit; }
.fq-n b { font-family: var(--font-num); font-size: 17px; line-height: 1.2; }
.fq-n span { font-size: 11px; color: var(--ink-3); }
.fq-n.acc { background: var(--surface-2); }
.fq-n.on { border-color: var(--cur); background: var(--cur-soft); box-shadow: inset 0 0 0 1px var(--cur); }
.fq-host:empty { display: none; }
.fq-run { display: grid; gap: 12px; }
.fq-top { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; }
.fq-prog { font-family: var(--font-num); font-size: 15px; font-weight: 600; }
.fq-ok { font-family: var(--font-num); font-size: 14px; color: var(--good); }
.fq-timer { flex: 1 1 140px; height: 8px; border-radius: 4px; background: var(--surface-2); overflow: hidden; min-width: 90px; }
.fq-timer i { display: block; height: 100%; width: 100%; background: var(--glaze); border-radius: 4px; }
.fq-timer.low i { background: var(--bad); }
.fq-top .btn { margin-left: auto; }
.choice { position: relative; }
.choice .kk { position: absolute; top: 4px; left: 7px; font-style: normal; font-size: 10.5px; font-weight: 500; color: var(--ink-3); font-family: var(--font-num); }
.choice:disabled { cursor: default; }
.fg-choices .fgc { padding: 12px 6px 6px; display: grid; place-items: center; }
.fg-choices .fgc svg.fg { width: 100%; max-width: 112px; height: auto; }
.fg-choices .fgc svg.fg-transverse, .fg-choices .fgc svg.fg-double, .fg-choices .fgc svg.fg-triple { max-width: 170px; }
.q-name { margin: 0; }
.q-listen { min-height: 1.4em; margin: 0; font-size: 14.5px; color: var(--ink-2); }
.q-listen.ok { color: var(--good); }
.q-listen.no { color: var(--bad); }
.q-hint { font-size: 13.5px; display: inline-flex; gap: 6px; align-items: center; }
.fq-sum { display: grid; justify-items: center; gap: 10px; text-align: center; }
.fq-big b { font-family: var(--font-num); font-size: 64px; line-height: 1; color: var(--cur); }
.fq-big span { font-size: 16px; margin-left: 4px; color: var(--ink-2); }
.fq-line { margin: 0; color: var(--ink-2); }
.fq-line.ok { color: var(--good); }
.fq-sum h3 { margin: 6px 0 0; font-size: 15px; }
.fq-weak { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.fq-wcard { display: grid; justify-items: center; gap: 2px; padding: 8px; border-radius: 11px; border: 1px solid var(--line); background: var(--surface); cursor: pointer; font: inherit; color: inherit; width: 112px; }
.fq-wcard svg.fg { width: 76px; height: auto; }
.fq-wcard svg.fg-transverse, .fq-wcard svg.fg-double, .fq-wcard svg.fg-triple { width: 100px; }
.fq-wcard b { font-family: var(--font-num); font-size: 18px; }
.fq-wcard span { font-size: 12px; color: var(--bad); }
.fq-exam { font-size: 14px; display: inline-flex; gap: 6px; align-items: center; }
.fq-review { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; max-width: 640px; }
.fq-review span { display: inline-flex; align-items: center; gap: 4px; padding: 3px 8px; border-radius: 8px; background: var(--surface-2); font-family: var(--font-num); font-size: 14px; }
.fq-review span i { font-style: normal; font-size: 10.5px; color: var(--ink-3); }
.fq-review span b { font-size: 13px; }
.fq-review span.ok { background: var(--good-soft); } .fq-review span.ok b { color: var(--good); }
.fq-review span.bad { background: var(--bad-soft); } .fq-review span.bad b { color: var(--bad); }
.fq-review span.warn { background: var(--warn-soft); } .fq-review span.warn b { color: var(--warn); }
/* 指法表：遮住指法翻牌背誦 */
.fc-fg { position: relative; display: grid; place-items: center; }
.fgrid.hide-fg .fcard:not(.flip) .fc-fg svg { visibility: hidden; }
.fgrid.hide-fg .fcard:not(.flip) .fc-fg::after { content: "?"; position: absolute; inset: 0; display: grid; place-items: center; font-family: var(--font-num); font-size: 36px; font-weight: 700; color: var(--ink-3); border: 1.5px dashed var(--line); border-radius: 10px; }
.fgrid.hide-fg .fcard:not(.flip) .alts { visibility: hidden; }
.fgrid.hide-fg .fcard.flip { border-color: var(--glaze); }
.order-head { display: flex; flex-wrap: wrap; gap: 8px 16px; justify-content: space-between; align-items: flex-start; }
.order-memo { font-size: 14px; display: inline-flex; gap: 6px; align-items: center; }
@media (max-width: 560px) { .fg-choices { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.q-msg.ok { color: var(--good); }
.q-msg.no { color: var(--bad); }

/* 調音 */
.tuner-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; }
.tuner { display: grid; gap: 12px; justify-items: center; text-align: center; }
.tn-note { display: flex; align-items: center; gap: 18px; justify-content: center; min-height: 112px; flex-wrap: wrap; }
.tn-fg svg.fg { width: 96px; height: auto; }
.tn-fg svg.fg-transverse, .tn-fg svg.fg-double, .tn-fg svg.fg-triple { width: 170px; }
.tn-name { font-family: var(--font-num); font-size: 58px; font-weight: 700; line-height: 1; }
.tn-sub { font-size: 14px; color: var(--ink-2); }
.gauge { width: min(340px, 100%); height: auto; }
.gauge .tick { stroke: var(--ink-3); stroke-width: 1.2; }
.gauge .tick.mid { stroke: var(--good); stroke-width: 2.4; }
.gauge .zone { fill: var(--good-soft); }
.gauge .lab { fill: var(--ink-3); font-size: 10px; font-family: var(--font-num); }
.gauge .needle { stroke: var(--ink); stroke-width: 2.6; stroke-linecap: round; transition: transform .1s linear; transform-origin: 150px 150px; }
.gauge .hub { fill: var(--ink); }
.tn-hint { min-height: 1.6em; font-size: 15px; font-weight: 600; }
.tn-hint.ok { color: var(--good); }
.tn-hint.lo, .tn-hint.hi { color: var(--warn); }
canvas.hist { width: 100%; height: 230px; display: block; }
.longtone { display: grid; gap: 12px; margin-top: 16px; }
.lt-stage { font-family: var(--font-num); font-size: 40px; font-weight: 700; color: var(--glaze); min-height: 1.2em; }
.lt-res { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 16px; align-items: center; }
.lt-res .big { font-family: var(--font-num); font-size: 48px; font-weight: 700; }
.lt-res ul { margin: 0; padding-left: 1.1em; font-size: 14px; }
canvas.ltc { width: 100%; height: 120px; display: block; border-radius: 10px; background: var(--surface-2); }

/* 我的陶笛 */
.inst-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; align-items: flex-end; }
.inst-head > div { display: grid; gap: 6px; max-width: 72ch; }
.inst-key { display: grid; gap: 4px; }
.inst-key select { margin-left: 0; }
.inst-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 12px; }
.icard { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 4px 14px; align-items: center; padding: 14px; border-radius: 14px; border: 1px solid var(--line); background: var(--surface); box-shadow: var(--shadow); text-align: left; font: inherit; color: inherit; cursor: pointer; position: relative; }
.icard:hover { border-color: var(--glaze); }
.icard.on { border-color: var(--glaze); box-shadow: inset 0 0 0 2px var(--glaze), var(--shadow); }
.icard .ic-fg { grid-row: span 3; width: 74px; display: grid; place-items: center; }
.icard .ic-fg svg.fg { width: 64px; height: auto; }
.icard .ic-fg svg.fg-transverse, .icard .ic-fg svg.fg-double, .icard .ic-fg svg.fg-triple { width: 74px; }
.icard b { font-size: 15px; }
.icard span { font-size: 12.5px; color: var(--ink-2); }
.icard .ic-meta { font-family: var(--font-num); font-size: 12px; color: var(--ink-3); }
.icard .ic-tag { position: absolute; right: 10px; top: 10px; font-size: 11px; padding: 1px 8px; border-radius: 999px; background: var(--glaze); color: var(--on-glaze); }
.icard .ic-act { grid-column: 2; display: flex; gap: 6px; flex-wrap: wrap; margin-top: 4px; }
.icard.new { border-style: dashed; justify-items: start; }
.editor-card { display: grid; gap: 14px; }
.ed-head { display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; align-items: center; }
.ie-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px; }
.ie-left, .ie-right { display: grid; gap: 10px; align-content: start; min-width: 0; }
.ie-canvas { background: var(--surface-2); border-radius: 12px; padding: 12px; touch-action: none; }
.ie-canvas svg.fg { width: 100%; height: auto; max-height: 360px; }
.ie-canvas [data-h] { cursor: grab; }
.ie-hole { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; min-height: 40px; }
.ie-notes { display: grid; grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); gap: 8px; max-height: 640px; overflow-y: auto; padding-right: 4px; }
.ie-note { display: grid; justify-items: center; gap: 2px; padding: 8px 6px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); }
.ie-note.off { opacity: .55; border-style: dashed; }
.ie-note svg.fg { width: 84px; height: auto; }
.ie-note .ie-n { font-family: var(--font-num); font-size: 15px; font-weight: 600; }
.ie-note .ie-act { display: flex; gap: 4px; flex-wrap: wrap; justify-content: center; }
.ie-note .ie-act button, .ie-note select { font: inherit; font-size: 11px; padding: 1px 6px; border-radius: 6px; border: 1px solid var(--line); background: var(--surface-2); color: var(--ink-2); cursor: pointer; }

/* 練習紀錄 */
.stat-row { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; display: grid; gap: 2px; }
.stat b { font-family: var(--font-num); font-size: 30px; line-height: 1.1; }
.stat span { font-size: 12.5px; color: var(--ink-2); }
.prog-grid { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); gap: 16px; }
canvas.prog-chart { width: 100%; height: 200px; display: block; }
.cal { display: grid; grid-template-columns: repeat(8, 1fr); gap: 4px; }
.cal .wk { display: grid; gap: 4px; }
.cal i { display: block; aspect-ratio: 1; border-radius: 4px; background: var(--surface-2); max-width: 26px; }
.cal i.l1 { background: color-mix(in srgb, var(--glaze) 30%, var(--surface-2)); }
.cal i.l2 { background: color-mix(in srgb, var(--glaze) 55%, var(--surface-2)); }
.cal i.l3 { background: var(--glaze); }
.weak { display: flex; flex-wrap: wrap; gap: 10px; }
.weak button { display: grid; justify-items: center; gap: 2px; padding: 8px 10px; border-radius: 12px; border: 1px solid var(--line); background: var(--surface); cursor: pointer; font: inherit; color: inherit; min-width: 86px; }
.weak button:hover { border-color: var(--glaze); }
.weak svg.fg { width: 52px; height: auto; }
.weak svg.fg-transverse, .weak svg.fg-double, .weak svg.fg-triple { width: 96px; }
.weak b { font-family: var(--font-num); font-size: 18px; }
.weak span { font-size: 12px; color: var(--bad); }
.ptable-wrap { overflow-x: auto; }
.ptable { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.ptable th, .ptable td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.ptable th { font-size: 12px; color: var(--ink-3); font-weight: 500; }
.ptable td.n { font-family: var(--font-num); font-variant-numeric: tabular-nums; }
.ptable a { font-weight: 600; text-decoration: none; }
.ptable .spark { width: 90px; height: 22px; display: block; }

/* 設定 */
.prefs { display: grid; gap: 16px; max-width: 880px; }
.pref { display: grid; grid-template-columns: minmax(0, 15em) minmax(0, 1fr); gap: 8px 18px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--line); }
.pref:last-child { border-bottom: 0; }
.pref > div:first-child b { display: block; font-size: 14.5px; }
.pref > div:first-child span { font-size: 12.5px; color: var(--ink-3); }

/* 登入 */
.auth { position: fixed; inset: 0; z-index: 60; background: var(--bg); display: grid; place-items: center; padding: 20px max(16px, env(safe-area-inset-left, 0px)); overflow-y: auto; }
.auth-card { width: min(400px, 100%); display: grid; gap: 16px; padding: 24px; }
.auth-brand { display: flex; align-items: center; gap: 10px; }
.auth-brand svg { width: 38px; height: 40px; }
.auth label { display: grid; gap: 4px; }
.auth label input { margin-left: 0; width: 100%; }
.auth-msg { color: var(--bad); font-size: 13.5px; min-height: 1.2em; }
.auth-setup ol { margin: 6px 0 0; padding-left: 1.3em; display: grid; gap: 4px; }
.auth-setup code { font-size: 12.5px; overflow-wrap: anywhere; }

/* 提示訊息 */
.toast { position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%) translateY(12px); background: var(--ink); color: var(--bg); padding: 9px 16px; border-radius: 10px; font-size: 14px; opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; z-index: 70; max-width: calc(100% - 32px); }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.hud:not([hidden]) ~ .toast { bottom: calc(110px + env(safe-area-inset-bottom, 0px)); }
.foot { margin-top: 28px; padding-top: 14px; border-top: 1px solid var(--line); font-size: 12.5px; color: var(--ink-3); display: grid; gap: 4px; }

/* ---------- 考試時的譜面：不能改譜、調速度、移調 ---------- */
.sheet-module.exam-mode .practice-bar, .sheet-module.exam-mode #shiftGroup, .sheet-module.exam-mode #btnEdit, .sheet-module.exam-mode #btnDelete,
.sheet-module.exam-mode #btnSaveEx, .sheet-module.exam-mode #btnExport, .sheet-module.exam-mode label[for="speed"], .sheet-module.exam-mode #calBar,
.sheet-module.exam-mode .res-hist, .sheet-module.exam-mode #memoGroup { display: none !important; }
/* ---------- 校正 ---------- */
.calib-bar { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; padding: 10px 14px; border-radius: 10px; background: var(--cur-soft); font-size: 13.5px; }
.calib-bar.ok { background: var(--surface-2); color: var(--ink-2); }
.calib-bar b { color: var(--cur); }
.calib-bar.ok b { color: var(--good); }
.calib-bar .grow { flex: 1 1 260px; min-width: 0; }
.overlay { position: fixed; inset: 0; z-index: 55; background: color-mix(in srgb, var(--bg) 70%, transparent); backdrop-filter: blur(3px); display: grid; place-items: center; padding: 20px max(16px, env(safe-area-inset-left, 0px)); overflow-y: auto; }
.cal-card { width: min(560px, 100%); display: grid; gap: 14px; }
.cal-why { margin: 0; padding-left: 1.2em; display: grid; gap: 4px; font-size: 14px; }
.cal-run { display: grid; gap: 12px; }
.cal-step { margin: 0; font-size: 13px; color: var(--ink-3); letter-spacing: .04em; }
.cal-main { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.cal-fg { flex: none; width: 120px; display: grid; place-items: center; min-height: 120px; }
.cal-fg svg { width: 100%; height: auto; }
.cal-info { flex: 1 1 220px; min-width: 0; display: grid; gap: 10px; }
.cal-name { font-family: var(--font-display); font-size: 30px; line-height: 1.1; }
.cal-meter { margin: 4px 0; }
.cal-dots { list-style: none; margin: 0; padding: 0; display: flex; gap: 6px; flex-wrap: wrap; }
.cal-dots li { width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; font-size: 11.5px; font-family: var(--font-num); background: var(--surface-2); color: var(--ink-3); }
.cal-dots li.cur { box-shadow: inset 0 0 0 2px var(--cur); color: var(--cur); font-weight: 700; }
.cal-dots li.ok { background: var(--good-soft); color: var(--good); }
.cal-dots li.skip { background: var(--bad-soft); color: var(--bad); }
.cal-chart { display: grid; grid-template-columns: repeat(9, minmax(0, 1fr)); gap: 6px; height: 170px; padding: 8px 4px 6px; border-radius: 10px; background: var(--surface-2); }
.cal-col { display: grid; grid-template-rows: minmax(0, 1fr) auto; gap: 4px; height: 100%; text-align: center; font-size: 11.5px; line-height: 1.3; }
.cal-col .bar-area { position: relative; }
.cal-col .bar-area::before { content: ""; position: absolute; left: 0; right: 0; top: 50%; border-top: 1px dashed var(--ink-3); opacity: .5; }
.cal-col i { position: absolute; left: 20%; right: 20%; border-radius: 3px; background: var(--good); }
.cal-col i.warn { background: var(--warn); }
.cal-col i.bad { background: var(--bad); }
.cal-col em { font-style: normal; font-family: var(--font-num); color: var(--ink-2); }
.cal-tips { margin: 0; padding-left: 1.2em; display: grid; gap: 6px; font-size: 14px; }
/* ---------- 考試 ---------- */
.exam-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); gap: 12px; }
.exam-card { display: grid; gap: 8px; align-content: start; }
.exam-card h3 { margin: 0; font-size: 17px; }
.exam-card .row { gap: 8px; }
.exam-card .meta { font-size: 13px; color: var(--ink-2); display: grid; gap: 2px; }
.exam-card.closed { opacity: .75; }
.ee-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 230px), 1fr)); gap: 12px 16px; }
.ee-grid label, #examEdit > label { display: grid; gap: 4px; font-size: 13.5px; color: var(--ink-2); }
.ee-grid input[type=text], .ee-grid select, .ee-grid input[type=datetime-local], #examEdit textarea { width: 100%; margin: 0; }
.ee-checks { display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 14px; }
.ee-kind { display: flex; flex-wrap: wrap; gap: 10px 28px; align-items: center; }
.ee-seg { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
#examEdit .ee-finger { gap: 12px; padding: 12px; border-radius: 12px; background: var(--surface-2); }
#examEdit .ee-finger .fq-type { background: var(--surface); }
#etQuiz { padding-top: 4px; border-top: 1px solid var(--line); }
.et-rules { margin: 0; padding-left: 1.2em; display: grid; gap: 4px; font-size: 14px; }
.et-steps { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.et-steps li { display: flex; gap: 6px; align-items: center; padding: 6px 12px 6px 6px; border-radius: 999px; background: var(--surface-2); color: var(--ink-3); font-size: 13.5px; }
.et-steps li b { width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; background: var(--surface); font-family: var(--font-num); font-size: 12px; }
.et-steps li.on { background: var(--cur-soft); color: var(--ink); font-weight: 600; }
.et-steps li.on b { background: var(--cur); color: #fff; }
.et-steps li.done { background: var(--good-soft); color: var(--good); }
.et-steps li.done b { background: var(--good); color: #fff; }
.er-table audio { height: 30px; max-width: 220px; }
.note-strip { display: flex; flex-wrap: wrap; gap: 1px; max-width: 220px; margin-top: 4px; }
.note-strip i { width: 5px; height: 9px; border-radius: 1px; background: var(--miss); }
.note-strip i.ok { background: var(--good); }
.note-strip i.warn { background: var(--warn); }
.note-strip i.bad { background: var(--bad); }
.er-table td.best { font-weight: 700; }
.er-table small.warn-t { color: var(--warn); font-weight: 500; }
.st-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 180px), 1fr)); gap: 10px; }
.st-grid div { background: var(--surface-2); border-radius: 10px; padding: 10px 12px; display: grid; gap: 2px; }
.st-grid b { font-family: var(--font-num); font-size: 20px; }
.st-grid span { font-size: 12.5px; color: var(--ink-3); }
.st-grid .low b { color: var(--bad); }

@media (max-width: 1100px) {
  .nav { order: 4; flex-basis: 100%; }
  .top-in { row-gap: 4px; }
  .hud-in { grid-template-columns: auto auto minmax(0, 1fr); }
  .hud-prog { grid-column: 1 / -1; justify-content: space-between; }
}
@media (max-width: 960px) {
  .songs-grid { grid-template-columns: minmax(0, 1fr); }
  .lib { position: static; max-height: none; grid-template-rows: auto; }
  .lib-list { display: flex; overflow-x: auto; padding-bottom: 6px; gap: 6px; }
  .lib-list .song { min-width: 168px; max-width: 220px; background: var(--surface); border-color: var(--line); }
  .lib-list .song.on { background: var(--glaze-soft); }
  .res-top { grid-template-columns: auto minmax(0, 1fr); }
  .res-hist { grid-column: 1 / -1; }
  .tuner-grid, .prog-grid, .ie-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  h1 { font-size: 24px; }
  .sheet { padding: 14px 10px; }
  .tab-host.paged { padding: 4px 2px 0; }
  .bar { margin-left: 4px; margin-right: 4px; }
  .g { margin: 0 1px; }
  .card { padding: 15px 14px; }
  .practice-bar { grid-template-columns: minmax(0, 1fr); }
  .editor .cols { grid-template-columns: minmax(0, 1fr); }
  .legend-card { grid-template-columns: minmax(0, 1fr); justify-items: center; }
  .res-top { grid-template-columns: minmax(0, 1fr); justify-items: center; text-align: center; }
  .res-sum { width: 100%; text-align: left; }
  .choices { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pref { grid-template-columns: minmax(0, 1fr); }
  .hud-in { grid-template-columns: auto minmax(0, 1fr); gap: 10px; }
  .hud-next { justify-self: end; }
  .hud-meter { grid-column: 1 / -1; }
  .hud-fg svg.fg { height: 58px; }
  .hud-fg svg.fg-pendant { width: 56px; }
  .hud-fg svg.fg-transverse, .hud-fg svg.fg-double, .hud-fg svg.fg-triple { width: 100px; }
  .hud-txt b { font-size: 24px; }
  .brand small, .who span:last-child { display: none; }
  .who { padding: 3px; }
  .tn-name { font-size: 46px; }
  .big-fg svg.fg-transverse, .big-fg svg.fg-double, .big-fg svg.fg-triple { width: 100%; max-width: 300px; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}
@media print {
  .top, .lib, .toolbar, .practice-bar, .results, .hud, .toast, .notice, .editor, .foot, .warns, nav, .pager, .ex-card, .legend-strip { display: none !important; }
  body { background: #fff; color: #000; }
  .sheet { border: 0; box-shadow: none; }
  .tab-host.paged { height: auto !important; overflow: visible; }
  .tab { transform: none !important; }
  .sheet-module:not(.exam-mode) .tab.memo .c :is(.nm, .oh, .ol, .lb, .ul, .ly, .fgw > *) { visibility: visible !important; }
  .sheet-module:not(.exam-mode) .tab.memo .c::after, .sheet-module:not(.exam-mode) .tab.memo .c .fgw::after { display: none !important; }
  .sheet-module.exam-mode .tab.memo { display: none !important; }   /* 背譜考試不能印出譜 */
  .c.now, .c[class*="r-"], .c[class*="lv-"], .m { background: none !important; box-shadow: none !important; }
}

/* ===== 指法圖 ===== */
:root {
  --fg-body: #e4874f;
  --fg-body-dim: #f2c8ad;
  --fg-edge: #c76c37;
  --fg-closed: #d3242c;
  --fg-open: #ffffff;
  --fg-open-edge: #b8aea2;
  --fg-na: #e9d6c8;
  --fg-na-edge: #d7c1b1;
  --fg-win: #6d3517;
  --fg-win-on: #d3242c;
  --fg-lab: #ffffff;
  --fg-lab-open: #8a4a24;
  --fg-mark: #2463eb;
}
.fgs-celadon {
  --fg-body: #a9cdbd;
  --fg-body-dim: #d9eae2;
  --fg-edge: #7aa594;
  --fg-closed: #1f2a2e;
  --fg-open: #ffffff;
  --fg-open-edge: #9fb5ad;
  --fg-na: #cfe1d9;
  --fg-na-edge: #b3cec2;
  --fg-win: #3d5a50;
  --fg-win-on: #1f2a2e;
  --fg-lab-open: #3d5a50;
}
.fgs-mono {
  --fg-body: #ffffff;
  --fg-body-dim: #f3f3f3;
  --fg-edge: #222222;
  --fg-closed: #111111;
  --fg-open: #ffffff;
  --fg-open-edge: #222222;
  --fg-na: #e6e6e6;
  --fg-na-edge: #bbbbbb;
  --fg-win: #222222;
  --fg-win-on: #111111;
  --fg-lab-open: #111111;
}
svg.fg { display: block; overflow: visible; }
svg.fg .fg-body { fill: var(--fg-body); stroke: var(--fg-edge); stroke-width: 0.8; stroke-linejoin: round; }
svg.fg .fg-body.dim { fill: var(--fg-body-dim); stroke: var(--fg-na-edge); }
svg.fg .fg-body.none { fill: var(--fg-body-dim); stroke: var(--fg-na-edge); stroke-dasharray: 2 1.6; }
svg.fg .fg-nub { fill: var(--fg-body); stroke: var(--fg-edge); stroke-width: 0.6; }
svg.fg .fg-nubdot { fill: var(--fg-open); }
svg.fg .fg-shine { fill: #ffffff; opacity: 0.22; }
svg.fg .fg-win { fill: var(--fg-win); opacity: 0.55; }
svg.fg .fg-win.on { fill: var(--fg-win-on); opacity: 1; }
svg.fg .fg-chl { fill: var(--fg-win-on); font-weight: 700; }
svg.fg .fg-q { fill: var(--fg-edge); font-weight: 700; font-family: system-ui, sans-serif; }
svg.fg .c .fg-dot, svg.fg .fg-dot.fc { fill: var(--fg-closed); }
svg.fg .o .fg-dot, svg.fg .fg-dot.fo { fill: var(--fg-open); }
svg.fg .na .fg-dot { fill: var(--fg-na); stroke: var(--fg-na-edge); stroke-width: 0.5; }
svg.fg .bk .fg-dot { stroke: var(--fg-open-edge); stroke-width: 0.7; }
svg.fg .bk.c .fg-dot { stroke: var(--fg-closed); }
svg.fg .fg-ring { fill: none; stroke: var(--fg-closed); stroke-width: 0.7; }
.fgs-mono svg.fg .o .fg-dot { stroke: var(--fg-open-edge); stroke-width: 0.7; }
svg.fg .fg-lab { fill: var(--fg-lab); font-weight: 700; font-family: system-ui, -apple-system, "Noto Sans TC", sans-serif; pointer-events: none; }
svg.fg .o .fg-lab, svg.fg .h .fg-lab { fill: var(--fg-lab-open); }
svg.fg .fg-mkr { fill: none; stroke: var(--fg-mark); stroke-width: 1.5; }
svg.fg .mk .fg-mkr { animation: fg-pulse 1s ease-in-out infinite alternate; }
@keyframes fg-pulse { from { stroke-opacity: 1; } to { stroke-opacity: 0.25; } }
@media (prefers-reduced-motion: reduce) { svg.fg .mk .fg-mkr { animation: none; } }
svg.fg .fg-selr { fill: none; stroke: var(--fg-mark); stroke-width: 1; stroke-dasharray: 1.6 1.2; }
svg.fg .fg-hit { fill: transparent; }
svg.fg [data-h] { cursor: pointer; }
svg.fg [data-h]:focus { outline: none; }
svg.fg [data-h]:focus-visible .fg-dot { stroke: var(--fg-mark); stroke-width: 1.2; }
svg.fg-ic .fg-body { stroke-width: 1; }
.fg-legend-row { display: inline-flex; flex-wrap: wrap; gap: 4px 14px; align-items: center; font-size: 13px; }
.fg-legend-row > span { display: inline-flex; align-items: center; gap: 4px; }
.fg-legend-row svg.fg { display: inline-block; }
svg.fg-legend .o .fg-dot, svg.fg-legend .fg-dot.fo { stroke: var(--fg-open-edge); stroke-width: 0.8; }